Rather depends on where and on what scale.
In the garden, hoe and rake the ground.
On the bench, literally or figuratively: dry the mixture, crumble it to fine crumbs and sieve.
Pebbles
Wash the pebbles and sand in a sieve. This will wash through the sand and keep the larger pebbles in the sieve.
fine soil n rock pebbles
The simplest way to separate pebbles from mud is to use screen made from an appropriate sized mesh hardware cloth. Mount the screen material in a frame and wash the mud through the screen, leaving the pebbles in the screen.
Sand, Clay and Pebbles.
we will separate a mixture of sand pebbles and grassgrass - winnowingsand - winnowingpebbles - handpicking .
we will separate a mixture of sand pebbles and grassgrass - winnowingsand - winnowingpebbles - handpicking .
Pebbles
Wash the pebbles and sand in a sieve. This will wash through the sand and keep the larger pebbles in the sieve.
fine soil n rock pebbles
filter or decant leaving behind the pebbles. evaporate the water leaving behind the sugar.
The simplest way to separate pebbles from mud is to use screen made from an appropriate sized mesh hardware cloth. Mount the screen material in a frame and wash the mud through the screen, leaving the pebbles in the screen.
water,soil,some pebbles and some plants
Filtration will separate the pebbles and water ... Pour the mixture through a strainer (or better yet, an old burlap bag) and catch the water in a bucket. The pebbles will remain in the strainer or bag.
your eyesight
Sand, Clay and Pebbles.
There is no real soil in the Atacama, there is only sand, pebbles and rocks. The "soil" is totally devoid of any organic matter.